Book Image

Learning Network Forensics

By : Samir Datt
Book Image

Learning Network Forensics

By: Samir Datt

Overview of this book

We live in a highly networked world. Every digital device—phone, tablet, or computer is connected to each other, in one way or another. In this new age of connected networks, there is network crime. Network forensics is the brave new frontier of digital investigation and information security professionals to extend their abilities to catch miscreants on the network. The book starts with an introduction to the world of network forensics and investigations. You will begin by getting an understanding of how to gather both physical and virtual evidence, intercepting and analyzing network data, wireless data packets, investigating intrusions, and so on. You will further explore the technology, tools, and investigating methods using malware forensics, network tunneling, and behaviors. By the end of the book, you will gain a complete understanding of how to successfully close a case.
Table of Contents (17 chapters)
Learning Network Forensics
About the Author
About the Reviewers


This chapter, though a bit long, has exposed us to three very important components of any network. As network forensic investigators, you learned about the underlying technologies and sources of evidence obtainable from proxies, firewalls, and routers. You also learned the roles they play in the big scheme of things and understood how and where the evidence resides.

We took a look at the Squid proxy server and different log formats that are prevalent for each of these components. We developed an understanding of the different fields in the log file and what each of these fields represent. We also gained an insight into the key role the routers play, the persistent and volatile memory that they have, the logs, as well as the importance of gathering information from both these memories and logs from a network forensic's perspective.

We made interesting progress and as we move on, we will study how data is smuggled through VPN tunnels in the next chapter. We will also see the different...